Quiddikey is a secure key management solution that dynamically reconstructs on-chip secret keys without ever storing those keys. This means that the keys are not present on the device when it is powered off, but generated only when needed on-the-fly using device-dependent Physically Unclonable Functions (PUFs).
This technology used to do this is called Hardware Intrinsic Security (HIS) and makes use of the unique device fingerprint originating from deep sub-micron manufacturing process variations. It defeats the most advanced invasive hardware attacks on the key itself by simply not storing the key.
Its flexible key management is designed to enable storage of multiple cryptographic keys of various lengths.

Benefits

Superior anti-tamper and anti-cloning protection based on Hardware Intrinsic Security

Uses only a small block of standard SRAM - applicable in all process nodes

No need for non-volatile memory to store keys

Easy and fast implementation in HW - pure digital logic to integrate - no tuning needed for special circuitry

Fast-track implementations in SW version (runs on embedded CPU) or in FPGA-based devices (e.g. Microsemi SmartFusion)

Cost efficient - small silicon area and/or SW footprint

Robust and reliable technology, exhaustively tested for the most extreme operating conditions